Old English byrla

← English barrel (link)

← Proto-Germanic *birilô (inherited)

← Old High German birila (cognate)

← Proto-Indo-European *bʰer- (root)

← Proto-Indo-European *bʰer- (derived)

← Proto-Indo-European *bʰrē- (mention)

→ English barrel (cognate)

→ Old French baril (cognate)